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An Analysis Of Mechanical Properties Of Anodized Aluminum Film At High Stress

Author

Listed:
  • XIXI ZHAO

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • GUOYING WEI

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • YUNDAN YU

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • YUEMEI GUO

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • AO ZHANG

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

Abstract

In this paper, a new environmental-friendly electrolyte containing sulfuric acid and tartaric acid has been used as the substitute of chromic acid for anodization. The work discussed the influence of anodizing voltages on the fatigue life of anodizedAl2024-T3 by performing fatigue tests with 0.1 stress ratio(R)at 320 MPa. Meanwhile the fatigue cycles to failure, yield strength, tensile strength and fracture surface of anodic films at different conditions were investigated. The results showed that the fatigue life of anodized and sealed specimens reduced a lot compared to aluminum alloy, which can be attributed to the crack sites initiated at the oxide layer. The fracture surface analyses also revealed that the number of crack initiation sites enlarged with the increase of anodizing voltage.

Suggested Citation

  • Xixi Zhao & Guoying Wei & Yundan Yu & Yuemei Guo & Ao Zhang, 2015. "An Analysis Of Mechanical Properties Of Anodized Aluminum Film At High Stress," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 22(01), pages 1-7.
    • Handle: RePEc:wsi:srlxxx:v:22:y:2015:i:01:n:s0218625x1550002x
    DOI: 10.1142/S0218625X1550002X
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